Stages Power Meter Left (Ultegra R8100) 170mm

Stages Power Meter – Left Crank Arm (Shimano Ultegra R8100, 170mm)

The Stages Power Meter Left for Shimano Ultegra R8100 delivers accurate, lightweight, and dependable power measurement for serious cyclists and racers. Mounted discreetly on the left crank arm, it provides precise power data without changing your bike’s existing setup.

Key Features

• Accurate Power Measurement: Captures left-leg power and doubles it for total output with an accuracy of ±1.5%.

• Ultegra R8100 Compatibility: Factory-installed on a genuine Shimano Ultegra R8100 crank arm for seamless integration and perfect fit.

• Lightweight Design: Adds only 15–20 grams to your existing crank for minimal impact on performance.

• ANT+ and Bluetooth Connectivity: Pairs easily with bike computers, smart trainers, and training apps like Wahoo, Garmin, and Zwift.

• Long Battery Life: Up to 200+ hours on a replaceable CR2032 coin cell battery.

• Weatherproof Construction: IPX7 waterproof rating ensures reliability in all conditions.

• Simple Setup: Installs like a standard crank arm—no calibration or special tools required.

Why You’ll Love It

The Stages Ultegra R8100 Power Meter is the easiest way to add reliable power data to your training routine. Perfect for road, triathlon, or indoor training, it’s trusted by pros and everyday riders for its simplicity, accuracy, and consistency.

Specifications

• Crank Length: 170mm

• Crank Type: Shimano Ultegra R8100 (12-speed)

• Measurement Type: Left-side power

• Accuracy: ±1.5%

• Battery Type: CR2032 coin cell (user-replaceable)

• Battery Life: ~200 hours

• Connectivity: ANT+ / Bluetooth Smart

• Weight: +20g over standard crank arm